Multilayered organosiloxane films with self-healing ability converted from block copolymer nanocomposites

Abstract

Self-healable, multilayered organosiloxane films were prepared via thermal conversion of lamellar organosiloxane films containing poly(ethylene oxide)–polydimethylsiloxane–poly(ethylene oxide) block copolymers. The incorporation of silanolate groups enabled crack healing through dynamic siloxane equilibration. The enhanced hardness and suppressed cyclic siloxane formation resulting from the multilayered structure exhibit potential for practical applications.